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Thread: C1E and overclocking




  1. #1
    Join Date
    Feb 2009
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    Default C1E and overclocking

    Hi,
    I have my PC in my room and as such I'd like it to be quite if I'm reading or watching a film. It is however overclocked so the CPU is going hell for leather.
    Is it posilbe to have the C1E and EIST enable so it throttles down when I'm only listening to tunes but goes up to my full o/c when gaming?
    Gigabyte GA-EP45-UD3LR
    E6320 @ 3.15GHz
    Zotac 8800 Amp edition@700/2000
    Thermal take purepower 680W
    Arctic Cooling AC-FRZ-7P Freezer 7 Pro Rev2
    Corsair 4GB Kit (2x2GB) DDR2 800MHz

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: C1E and overclocking

    Maybe, but my overclocked EP45-UD3P never throttled down with EIST and C1E enabled.
    Another option is to use multiple saved bios profiles, one for gaming and one setup for quieter running.
    You can save up to 8 different bios profiles where you load the desired profile (F12) or save a profile (F11) from the main bios screen.
    Q9650 @ 4.10GHz [9x456MHz]
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  3. #3
    Join Date
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    Default Re: C1E and overclocking

    it only throttles if cpu voltage is on normal or auto setting,also if you have win 7 try setting it on balanced power saving profile and you can disable eist and c1e in bios it will still throttle cpu ,if you have vista/xp keep eist and c1e enabled
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
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    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

  4. #4
    Join Date
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    Default Re: C1E and overclocking

    It is true that C1E requires Vcore set to auto or normal but my Q9550 and GA-EP45-UD3 combo can go up to 430 FSB with all voltages set to normal and C1E working. If I also enable LLC then I can use 450 as FSB and system is absolutely stable. Only when I use FSB values greater than 450 I have to start adjusting voltages and C1E stops working.

    Win 7 throttling does help but power usage is still almost double compared to C1E working. On my system idle CPU uses 10 W with C1E working, with C1E disabled and using Win 7 throttling power usage is 18 Watts.

  5. #5
    Join Date
    Feb 2010
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    Birmingham,Great Britain
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    Default Re: C1E and overclocking

    im at the limit with my oc 3.8ghz on normal cpu voltage if i clock higher ill have to come off normal voltage and i wont be able to use win7 power saving or c1e,all you can do is clock as high as you can using normal cpu voltage and use c1e
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
    1xsamsung 750gb hard drive-win7 ultimate 64
    1xsamsung 750gb hard drive-windows xp pro 32
    Ati x1950 pro gpu
    Logitech X-530 5.1 Speakers
    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

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